Scooterotica

its a common problem on jl 4 s,
maybe stronger springs would also help as well as extra bracing

Now you tell me just as I have one coming in the post

It's a very common problem with the JL4 I remember watching one on a mates GP totally disintergrate on the way back from Brid a couple of years ago after the YSA Coast2Coast and when I say disintergrate I mean disintergrate. The main chamber cracked straight down the middle along it's length as if it had been hit with a sledge hammer and fell to the road surface where it just exploded into a thousand bits . The well known Lambretta racer & tuner Vinnie Smith was the rider for those of you that know him.

This might be an option?
http://www.ekmpowershop12.com/ekmps/sho ... -931-p.asp

bazman wrote:This might be an option?
http://www.ekmpowershop12.com/ekmps/sho ... -931-p.asp

Good exhaust but my rubber mount for the tail can disintegrated in france got it solid mounted now.

I've had two JL4's crack, both in the same place as edens. The snail one I have also cracked on the ubend that the muffler is attached to and cracked where the bracket is joined to the expansion chamber...twice (makes me wonder why I bought the the second one )

Mike

Does the JL2 have the same problem then..???

I can see why they may crack as they are a lot thinner steel compared to the JL3 I also have.Think I will double spring the manifold joint and see